ELECTRONICS BIAS, FOR AMERITRON AMPLIFIERS
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EBS-1$ 39.95 Each
The Ameritron EBS-1 is an electronic bias system designed as an add-on for the AL-1200, 1500, and 82 amplifiers. It reduces heat by reducing quiescent current to very low values during periods when exciter output falls below 100mW.
The switching time of the EBS-1 series is 20 uS. The fast switching time of the EBS-1 series, plus the small bias change from near class B to normal class AB, insures bias switching does not add splatter or distortion to the transmitted signal.
The EBS-1 series also has no measurable effect on CW waveforms or signal bandwidth. The EBS-1 series has the potential to reduce receiver noise on break-in CW between break-in CW between characters, in cases where diode-noise from the PA section quiescent current is audible. The EBS-1 can be modified to the fully adjustable bias voltage system.
|EBS-1 PARTS LIST|
|100-1100||RESISTOR, 1/4 WATT, 5%, FILM, 10 OHM||0.10|
|100-2100||RESISTOR, FILM, 1/4 W, 5%, 100 OHM (52154250)||0.10|
|100-3100||RESISTOR, FILM, 1/4W, 5%, 1K (52154281T)||0.10|
|100-4100||RESISTOR, FILM, 1/4 W, 5%, 10K (52154257)||0.10|
|100-6100||RESISTOR, 1/4 WATT, 5%, FILM, 1M OHM||0.10|
|101-1100||RESISTOR, 1/2 WATT, 5%, FILM, 10 OHM||0.10|
|103-3470||RESISTOR, 1 W, METAL OX., 5%, 4.7K OHM||0.12|
|200-1100-2B||CAPACITOR, DISC, 1KV, .001 UF||0.20|
|200-2100-1||CAPACITPR, DISC, Z5U, 100V, .01 UF||0.10|
|200-3100||CAPACITOR, DISC, CERAMIC, 50/100V, 20%, Z5U, .1 UF||0.20|
|220-3330B||CAPACITOR, MULTILAYER, .2, 50V, X7R, 10%, .33 UF||0.32|
|305-2907||TRANSISTOR, SWITCHING, PNP, TO-18, 2N2907||1.00|
|305-3055J||TRANSISTOR, NPN, TO-220FP ISOLATED, MJF-3055||2.16|
|656-0625S||SCREW, PAN,PH, 6-32 X 5/8, SS||0.10|
|656-1250||SCREW, PAN,PH,6-32X1-1/4, ZINC||0.10|
|705-0632-1||NUT, HEX, SMALL PAT. 6-32 X 1/4, ZINC||0.10|
|711-0627||WASHER, LOCK, INT, #6, ZINC||0.10|
|715-1725-0375||SPACER, AL, #8, 3/8DIA X 3/8L (RP:715-1437-0375B||0.27|
|716C-0250||SPACER, AL, 1/4 HEX, 6-32 X .25 L||0.28|
|723-1593||TERMINAL, PCB POST, PUSH-ON, #1593-2||0.29|
|850-1001-1||SHIPPING BOX, 4X5X3, #1||2.32|AL-80B
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